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Table 2
Parameters obtained from Serpens South and W 40.
| Parameter | Serpens South | W 40 (H II region) | |||
|---|---|---|---|---|---|
| Range | Mean | Range | Mean | ||
| Total-N(NH3)/1015 cm−2 | 0.03–6.4 | 2.6 ± 1.4 | 0.02–0.8 | 0.3 ± 0.2 | |
| N(H2)/1022 cm−2 (a) | 0.9–6.3 | 3.2 ± 1.4 | 0.9–2.7 | 1.7 ± 0.5 | |
| χ(total-NH3)/10−8 | 0.2–21.2 | 8.6 ± 3.8 | 0.1–4.3 | 1.6 ± 1.4 | |
| Tgas/K | 8.9–16.8 | 12.3 ± 1.7 | 17.7–35.5 | 25.1 ± 4.9 | |
| Tdust/K (b) | 11.9–15.5 | 13.4 ± 0.9 | 16.8–23.6 | 19.1 ± 2.2 | |
| vth/ km s−1 | 0.09–0.12 | 0.10 ± 0.01 | 0.13–0.18 | 0.15 ± 0.01 | |
| σNT/ km s−1 | 0.07–0.54 | 0.32 ± 0.12 | 0.23–0.55 | 0.41 ± 0.08 | |
| cs/ km s−1 | 0.18–0.25 | 0.21 ± 0.01 | 0.25–0.36 | 0.29 ± 0.03 | |
| RP | 0.16–6.07 | 0.70 ± 0.90 | 0.31–1.43 | 0.57 ± 0.27 | |
| M | 0.41–2.47 | 1.51 ± 0.50 | 0.83–1.78 | 1.39 ± 0.23 | |
Notes. (a) Molecular hydrogen column densities and (b)dust temperatures are taken from Bontemps et al. (2010) and Könyves et al. (2015). The errors shown are the standard deviations of the mean. For the areas adopted for Serpens South and W 40, see Table 1.
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